xfs: remove subdirectories

Use the move from Linux 2.6 to Linux 3.x as an excuse to kill the
annoying subdirectories in the XFS source code.  Besides the large
amount of file rename the only changes are to the Makefile, a few
files including headers with the subdirectory prefix, and the binary
sysctl compat code that includes a header under fs/xfs/ from
kernel/.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>

1 files changed, 1556 insertions, 0 deletions

diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
new file mode 100644
index 000000000000..f7ce7debe14c
--- /dev/null
+++ b/fs/xfs/xfs_ioctl.c
@@ -0,0 +1,1556 @@
+/*
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_bit.h"
+#include "xfs_log.h"
+#include "xfs_inum.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_alloc.h"
+#include "xfs_mount.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_ioctl.h"
+#include "xfs_rtalloc.h"
+#include "xfs_itable.h"
+#include "xfs_error.h"
+#include "xfs_attr.h"
+#include "xfs_bmap.h"
+#include "xfs_buf_item.h"
+#include "xfs_utils.h"
+#include "xfs_dfrag.h"
+#include "xfs_fsops.h"
+#include "xfs_vnodeops.h"
+#include "xfs_discard.h"
+#include "xfs_quota.h"
+#include "xfs_inode_item.h"
+#include "xfs_export.h"
+#include "xfs_trace.h"
+
+#include <linux/capability.h>
+#include <linux/dcache.h>
+#include <linux/mount.h>
+#include <linux/namei.h>
+#include <linux/pagemap.h>
+#include <linux/slab.h>
+#include <linux/exportfs.h>
+
+/*
+ * xfs_find_handle maps from userspace xfs_fsop_handlereq structure to
+ * a file or fs handle.
+ *
+ * XFS_IOC_PATH_TO_FSHANDLE
+ *    returns fs handle for a mount point or path within that mount point
+ * XFS_IOC_FD_TO_HANDLE
+ *    returns full handle for a FD opened in user space
+ * XFS_IOC_PATH_TO_HANDLE
+ *    returns full handle for a path
+ */
+int
+xfs_find_handle(
+	unsigned int		cmd,
+	xfs_fsop_handlereq_t	*hreq)
+{
+	int			hsize;
+	xfs_handle_t		handle;
+	struct inode		*inode;
+	struct file		*file = NULL;
+	struct path		path;
+	int			error;
+	struct xfs_inode	*ip;
+
+	if (cmd == XFS_IOC_FD_TO_HANDLE) {
+		file = fget(hreq->fd);
+		if (!file)
+			return -EBADF;
+		inode = file->f_path.dentry->d_inode;
+	} else {
+		error = user_lpath((const char __user *)hreq->path, &path);
+		if (error)
+			return error;
+		inode = path.dentry->d_inode;
+	}
+	ip = XFS_I(inode);
+
+	/*
+	 * We can only generate handles for inodes residing on a XFS filesystem,
+	 * and only for regular files, directories or symbolic links.
+	 */
+	error = -EINVAL;
+	if (inode->i_sb->s_magic != XFS_SB_MAGIC)
+		goto out_put;
+
+	error = -EBADF;
+	if (!S_ISREG(inode->i_mode) &&
+	    !S_ISDIR(inode->i_mode) &&
+	    !S_ISLNK(inode->i_mode))
+		goto out_put;
+
+
+	memcpy(&handle.ha_fsid, ip->i_mount->m_fixedfsid, sizeof(xfs_fsid_t));
+
+	if (cmd == XFS_IOC_PATH_TO_FSHANDLE) {
+		/*
+		 * This handle only contains an fsid, zero the rest.
+		 */
+		memset(&handle.ha_fid, 0, sizeof(handle.ha_fid));
+		hsize = sizeof(xfs_fsid_t);
+	} else {
+		int		lock_mode;
+
+		lock_mode = xfs_ilock_map_shared(ip);
+		handle.ha_fid.fid_len = sizeof(xfs_fid_t) -
+					sizeof(handle.ha_fid.fid_len);
+		handle.ha_fid.fid_pad = 0;
+		handle.ha_fid.fid_gen = ip->i_d.di_gen;
+		handle.ha_fid.fid_ino = ip->i_ino;
+		xfs_iunlock_map_shared(ip, lock_mode);
+
+		hsize = XFS_HSIZE(handle);
+	}
+
+	error = -EFAULT;
+	if (copy_to_user(hreq->ohandle, &handle, hsize) ||
+	    copy_to_user(hreq->ohandlen, &hsize, sizeof(__s32)))
+		goto out_put;
+
+	error = 0;
+
+ out_put:
+	if (cmd == XFS_IOC_FD_TO_HANDLE)
+		fput(file);
+	else
+		path_put(&path);
+	return error;
+}
+
+/*
+ * No need to do permission checks on the various pathname components
+ * as the handle operations are privileged.
+ */
+STATIC int
+xfs_handle_acceptable(
+	void			*context,
+	struct dentry		*dentry)
+{
+	return 1;
+}
+
+/*
+ * Convert userspace handle data into a dentry.
+ */
+struct dentry *
+xfs_handle_to_dentry(
+	struct file		*parfilp,
+	void __user		*uhandle,
+	u32			hlen)
+{
+	xfs_handle_t		handle;
+	struct xfs_fid64	fid;
+
+	/*
+	 * Only allow handle opens under a directory.
+	 */
+	if (!S_ISDIR(parfilp->f_path.dentry->d_inode->i_mode))
+		return ERR_PTR(-ENOTDIR);
+
+	if (hlen != sizeof(xfs_handle_t))
+		return ERR_PTR(-EINVAL);
+	if (copy_from_user(&handle, uhandle, hlen))
+		return ERR_PTR(-EFAULT);
+	if (handle.ha_fid.fid_len !=
+	    sizeof(handle.ha_fid) - sizeof(handle.ha_fid.fid_len))
+		return ERR_PTR(-EINVAL);
+
+	memset(&fid, 0, sizeof(struct fid));
+	fid.ino = handle.ha_fid.fid_ino;
+	fid.gen = handle.ha_fid.fid_gen;
+
+	return exportfs_decode_fh(parfilp->f_path.mnt, (struct fid *)&fid, 3,
+			FILEID_INO32_GEN | XFS_FILEID_TYPE_64FLAG,
+			xfs_handle_acceptable, NULL);
+}
+
+STATIC struct dentry *
+xfs_handlereq_to_dentry(
+	struct file		*parfilp,
+	xfs_fsop_handlereq_t	*hreq)
+{
+	return xfs_handle_to_dentry(parfilp, hreq->ihandle, hreq->ihandlen);
+}
+
+int
+xfs_open_by_handle(
+	struct file		*parfilp,
+	xfs_fsop_handlereq_t	*hreq)
+{
+	const struct cred	*cred = current_cred();
+	int			error;
+	int			fd;
+	int			permflag;
+	struct file		*filp;
+	struct inode		*inode;
+	struct dentry		*dentry;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -XFS_ERROR(EPERM);
+
+	dentry = xfs_handlereq_to_dentry(parfilp, hreq);
+	if (IS_ERR(dentry))
+		return PTR_ERR(dentry);
+	inode = dentry->d_inode;
+
+	/* Restrict xfs_open_by_handle to directories & regular files. */
+	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode))) {
+		error = -XFS_ERROR(EPERM);
+		goto out_dput;
+	}
+
+#if BITS_PER_LONG != 32
+	hreq->oflags |= O_LARGEFILE;
+#endif
+
+	/* Put open permission in namei format. */
+	permflag = hreq->oflags;
+	if ((permflag+1) & O_ACCMODE)
+		permflag++;
+	if (permflag & O_TRUNC)
+		permflag |= 2;
+
+	if ((!(permflag & O_APPEND) || (permflag & O_TRUNC)) &&
+	    (permflag & FMODE_WRITE) && IS_APPEND(inode)) {
+		error = -XFS_ERROR(EPERM);
+		goto out_dput;
+	}
+
+	if ((permflag & FMODE_WRITE) && IS_IMMUTABLE(inode)) {
+		error = -XFS_ERROR(EACCES);
+		goto out_dput;
+	}
+
+	/* Can't write directories. */
+	if (S_ISDIR(inode->i_mode) && (permflag & FMODE_WRITE)) {
+		error = -XFS_ERROR(EISDIR);
+		goto out_dput;
+	}
+
+	fd = get_unused_fd();
+	if (fd < 0) {
+		error = fd;
+		goto out_dput;
+	}
+
+	filp = dentry_open(dentry, mntget(parfilp->f_path.mnt),
+			   hreq->oflags, cred);
+	if (IS_ERR(filp)) {
+		put_unused_fd(fd);
+		return PTR_ERR(filp);
+	}
+
+	if (S_ISREG(inode->i_mode)) {
+		filp->f_flags |= O_NOATIME;
+		filp->f_mode |= FMODE_NOCMTIME;
+	}
+
+	fd_install(fd, filp);
+	return fd;
+
+ out_dput:
+	dput(dentry);
+	return error;
+}
+
+/*
+ * This is a copy from fs/namei.c:vfs_readlink(), except for removing it's
+ * unused first argument.
+ */
+STATIC int
+do_readlink(
+	char __user		*buffer,
+	int			buflen,
+	const char		*link)
+{
+        int len;
+
+	len = PTR_ERR(link);
+	if (IS_ERR(link))
+		goto out;
+
+	len = strlen(link);
+	if (len > (unsigned) buflen)
+		len = buflen;
+	if (copy_to_user(buffer, link, len))
+		len = -EFAULT;
+ out:
+	return len;
+}
+
+
+int
+xfs_readlink_by_handle(
+	struct file		*parfilp,
+	xfs_fsop_handlereq_t	*hreq)
+{
+	struct dentry		*dentry;
+	__u32			olen;
+	void			*link;
+	int			error;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -XFS_ERROR(EPERM);
+
+	dentry = xfs_handlereq_to_dentry(parfilp, hreq);
+	if (IS_ERR(dentry))
+		return PTR_ERR(dentry);
+
+	/* Restrict this handle operation to symlinks only. */
+	if (!S_ISLNK(dentry->d_inode->i_mode)) {
+		error = -XFS_ERROR(EINVAL);
+		goto out_dput;
+	}
+
+	if (copy_from_user(&olen, hreq->ohandlen, sizeof(__u32))) {
+		error = -XFS_ERROR(EFAULT);
+		goto out_dput;
+	}
+
+	link = kmalloc(MAXPATHLEN+1, GFP_KERNEL);
+	if (!link) {
+		error = -XFS_ERROR(ENOMEM);
+		goto out_dput;
+	}
+
+	error = -xfs_readlink(XFS_I(dentry->d_inode), link);
+	if (error)
+		goto out_kfree;
+	error = do_readlink(hreq->ohandle, olen, link);
+	if (error)
+		goto out_kfree;
+
+ out_kfree:
+	kfree(link);
+ out_dput:
+	dput(dentry);
+	return error;
+}
+
+STATIC int
+xfs_fssetdm_by_handle(
+	struct file		*parfilp,
+	void			__user *arg)
+{
+	int			error;
+	struct fsdmidata	fsd;
+	xfs_fsop_setdm_handlereq_t dmhreq;
+	struct dentry		*dentry;
+
+	if (!capable(CAP_MKNOD))
+		return -XFS_ERROR(EPERM);
+	if (copy_from_user(&dmhreq, arg, sizeof(xfs_fsop_setdm_handlereq_t)))
+		return -XFS_ERROR(EFAULT);
+
+	dentry = xfs_handlereq_to_dentry(parfilp, &dmhreq.hreq);
+	if (IS_ERR(dentry))
+		return PTR_ERR(dentry);
+
+	if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode)) {
+		error = -XFS_ERROR(EPERM);
+		goto out;
+	}
+
+	if (copy_from_user(&fsd, dmhreq.data, sizeof(fsd))) {
+		error = -XFS_ERROR(EFAULT);
+		goto out;
+	}
+
+	error = -xfs_set_dmattrs(XFS_I(dentry->d_inode), fsd.fsd_dmevmask,
+				 fsd.fsd_dmstate);
+
+ out:
+	dput(dentry);
+	return error;
+}
+
+STATIC int
+xfs_attrlist_by_handle(
+	struct file		*parfilp,
+	void			__user *arg)
+{
+	int			error = -ENOMEM;
+	attrlist_cursor_kern_t	*cursor;
+	xfs_fsop_attrlist_handlereq_t al_hreq;
+	struct dentry		*dentry;
+	char			*kbuf;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -XFS_ERROR(EPERM);
+	if (copy_from_user(&al_hreq, arg, sizeof(xfs_fsop_attrlist_handlereq_t)))
+		return -XFS_ERROR(EFAULT);
+	if (al_hreq.buflen > XATTR_LIST_MAX)
+		return -XFS_ERROR(EINVAL);
+
+	/*
+	 * Reject flags, only allow namespaces.
+	 */
+	if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
+		return -XFS_ERROR(EINVAL);
+
+	dentry = xfs_handlereq_to_dentry(parfilp, &al_hreq.hreq);
+	if (IS_ERR(dentry))
+		return PTR_ERR(dentry);
+
+	kbuf = kzalloc(al_hreq.buflen, GFP_KERNEL);
+	if (!kbuf)
+		goto out_dput;
+
+	cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
+	error = -xfs_attr_list(XFS_I(dentry->d_inode), kbuf, al_hreq.buflen,
+					al_hreq.flags, cursor);
+	if (error)
+		goto out_kfree;
+
+	if (copy_to_user(al_hreq.buffer, kbuf, al_hreq.buflen))
+		error = -EFAULT;
+
+ out_kfree:
+	kfree(kbuf);
+ out_dput:
+	dput(dentry);
+	return error;
+}
+
+int
+xfs_attrmulti_attr_get(
+	struct inode		*inode,
+	unsigned char		*name,
+	unsigned char		__user *ubuf,
+	__uint32_t		*len,
+	__uint32_t		flags)
+{
+	unsigned char		*kbuf;
+	int			error = EFAULT;
+
+	if (*len > XATTR_SIZE_MAX)
+		return EINVAL;
+	kbuf = kmalloc(*len, GFP_KERNEL);
+	if (!kbuf)
+		return ENOMEM;
+
+	error = xfs_attr_get(XFS_I(inode), name, kbuf, (int *)len, flags);
+	if (error)
+		goto out_kfree;
+
+	if (copy_to_user(ubuf, kbuf, *len))
+		error = EFAULT;
+
+ out_kfree:
+	kfree(kbuf);
+	return error;
+}
+
+int
+xfs_attrmulti_attr_set(
+	struct inode		*inode,
+	unsigned char		*name,
+	const unsigned char	__user *ubuf,
+	__uint32_t		len,
+	__uint32_t		flags)
+{
+	unsigned char		*kbuf;
+	int			error = EFAULT;
+
+	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
+		return EPERM;
+	if (len > XATTR_SIZE_MAX)
+		return EINVAL;
+
+	kbuf = memdup_user(ubuf, len);
+	if (IS_ERR(kbuf))
+		return PTR_ERR(kbuf);
+
+	error = xfs_attr_set(XFS_I(inode), name, kbuf, len, flags);
+
+	return error;
+}
+
+int
+xfs_attrmulti_attr_remove(
+	struct inode		*inode,
+	unsigned char		*name,
+	__uint32_t		flags)
+{
+	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
+		return EPERM;
+	return xfs_attr_remove(XFS_I(inode), name, flags);
+}
+
+STATIC int
+xfs_attrmulti_by_handle(
+	struct file		*parfilp,
+	void			__user *arg)
+{
+	int			error;
+	xfs_attr_multiop_t	*ops;
+	xfs_fsop_attrmulti_handlereq_t am_hreq;
+	struct dentry		*dentry;
+	unsigned int		i, size;
+	unsigned char		*attr_name;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -XFS_ERROR(EPERM);
+	if (copy_from_user(&am_hreq, arg, sizeof(xfs_fsop_attrmulti_handlereq_t)))
+		return -XFS_ERROR(EFAULT);
+
+	/* overflow check */
+	if (am_hreq.opcount >= INT_MAX / sizeof(xfs_attr_multiop_t))
+		return -E2BIG;
+
+	dentry = xfs_handlereq_to_dentry(parfilp, &am_hreq.hreq);
+	if (IS_ERR(dentry))
+		return PTR_ERR(dentry);
+
+	error = E2BIG;
+	size = am_hreq.opcount * sizeof(xfs_attr_multiop_t);
+	if (!size || size > 16 * PAGE_SIZE)
+		goto out_dput;
+
+	ops = memdup_user(am_hreq.ops, size);
+	if (IS_ERR(ops)) {
+		error = PTR_ERR(ops);
+		goto out_dput;
+	}
+
+	attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
+	if (!attr_name)
+		goto out_kfree_ops;
+
+	error = 0;
+	for (i = 0; i < am_hreq.opcount; i++) {
+		ops[i].am_error = strncpy_from_user((char *)attr_name,
+				ops[i].am_attrname, MAXNAMELEN);
+		if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
+			error = -ERANGE;
+		if (ops[i].am_error < 0)
+			break;
+
+		switch (ops[i].am_opcode) {
+		case ATTR_OP_GET:
+			ops[i].am_error = xfs_attrmulti_attr_get(
+					dentry->d_inode, attr_name,
+					ops[i].am_attrvalue, &ops[i].am_length,
+					ops[i].am_flags);
+			break;
+		case ATTR_OP_SET:
+			ops[i].am_error = mnt_want_write(parfilp->f_path.mnt);
+			if (ops[i].am_error)
+				break;
+			ops[i].am_error = xfs_attrmulti_attr_set(
+					dentry->d_inode, attr_name,
+					ops[i].am_attrvalue, ops[i].am_length,
+					ops[i].am_flags);
+			mnt_drop_write(parfilp->f_path.mnt);
+			break;
+		case ATTR_OP_REMOVE:
+			ops[i].am_error = mnt_want_write(parfilp->f_path.mnt);
+			if (ops[i].am_error)
+				break;
+			ops[i].am_error = xfs_attrmulti_attr_remove(
+					dentry->d_inode, attr_name,
+					ops[i].am_flags);
+			mnt_drop_write(parfilp->f_path.mnt);
+			break;
+		default:
+			ops[i].am_error = EINVAL;
+		}
+	}
+
+	if (copy_to_user(am_hreq.ops, ops, size))
+		error = XFS_ERROR(EFAULT);
+
+	kfree(attr_name);
+ out_kfree_ops:
+	kfree(ops);
+ out_dput:
+	dput(dentry);
+	return -error;
+}
+
+int
+xfs_ioc_space(
+	struct xfs_inode	*ip,
+	struct inode		*inode,
+	struct file		*filp,
+	int			ioflags,
+	unsigned int		cmd,
+	xfs_flock64_t		*bf)
+{
+	int			attr_flags = 0;
+	int			error;
+
+	/*
+	 * Only allow the sys admin to reserve space unless
+	 * unwritten extents are enabled.
+	 */
+	if (!xfs_sb_version_hasextflgbit(&ip->i_mount->m_sb) &&
+	    !capable(CAP_SYS_ADMIN))
+		return -XFS_ERROR(EPERM);
+
+	if (inode->i_flags & (S_IMMUTABLE|S_APPEND))
+		return -XFS_ERROR(EPERM);
+
+	if (!(filp->f_mode & FMODE_WRITE))
+		return -XFS_ERROR(EBADF);
+
+	if (!S_ISREG(inode->i_mode))
+		return -XFS_ERROR(EINVAL);
+
+	if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
+		attr_flags |= XFS_ATTR_NONBLOCK;
+
+	if (filp->f_flags & O_DSYNC)
+		attr_flags |= XFS_ATTR_SYNC;
+
+	if (ioflags & IO_INVIS)
+		attr_flags |= XFS_ATTR_DMI;
+
+	error = xfs_change_file_space(ip, cmd, bf, filp->f_pos, attr_flags);
+	return -error;
+}
+
+STATIC int
+xfs_ioc_bulkstat(
+	xfs_mount_t		*mp,
+	unsigned int		cmd,
+	void			__user *arg)
+{
+	xfs_fsop_bulkreq_t	bulkreq;
+	int			count;	/* # of records returned */
+	xfs_ino_t		inlast;	/* last inode number */
+	int			done;
+	int			error;
+
+	/* done = 1 if there are more stats to get and if bulkstat */
+	/* should be called again (unused here, but used in dmapi) */
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return -XFS_ERROR(EIO);
+
+	if (copy_from_user(&bulkreq, arg, sizeof(xfs_fsop_bulkreq_t)))
+		return -XFS_ERROR(EFAULT);
+
+	if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
+		return -XFS_ERROR(EFAULT);
+
+	if ((count = bulkreq.icount) <= 0)
+		return -XFS_ERROR(EINVAL);
+
+	if (bulkreq.ubuffer == NULL)
+		return -XFS_ERROR(EINVAL);
+
+	if (cmd == XFS_IOC_FSINUMBERS)
+		error = xfs_inumbers(mp, &inlast, &count,
+					bulkreq.ubuffer, xfs_inumbers_fmt);
+	else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE)
+		error = xfs_bulkstat_single(mp, &inlast,
+						bulkreq.ubuffer, &done);
+	else	/* XFS_IOC_FSBULKSTAT */
+		error = xfs_bulkstat(mp, &inlast, &count, xfs_bulkstat_one,
+				     sizeof(xfs_bstat_t), bulkreq.ubuffer,
+				     &done);
+
+	if (error)
+		return -error;
+
+	if (bulkreq.ocount != NULL) {
+		if (copy_to_user(bulkreq.lastip, &inlast,
+						sizeof(xfs_ino_t)))
+			return -XFS_ERROR(EFAULT);
+
+		if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
+			return -XFS_ERROR(EFAULT);
+	}
+
+	return 0;
+}
+
+STATIC int
+xfs_ioc_fsgeometry_v1(
+	xfs_mount_t		*mp,
+	void			__user *arg)
+{
+	xfs_fsop_geom_t         fsgeo;
+	int			error;
+
+	error = xfs_fs_geometry(mp, &fsgeo, 3);
+	if (error)
+		return -error;
+
+	/*
+	 * Caller should have passed an argument of type
+	 * xfs_fsop_geom_v1_t.  This is a proper subset of the
+	 * xfs_fsop_geom_t that xfs_fs_geometry() fills in.
+	 */
+	if (copy_to_user(arg, &fsgeo, sizeof(xfs_fsop_geom_v1_t)))
+		return -XFS_ERROR(EFAULT);
+	return 0;
+}
+
+STATIC int
+xfs_ioc_fsgeometry(
+	xfs_mount_t		*mp,
+	void			__user *arg)
+{
+	xfs_fsop_geom_t		fsgeo;
+	int			error;
+
+	error = xfs_fs_geometry(mp, &fsgeo, 4);
+	if (error)
+		return -error;
+
+	if (copy_to_user(arg, &fsgeo, sizeof(fsgeo)))
+		return -XFS_ERROR(EFAULT);
+	return 0;
+}
+
+/*
+ * Linux extended inode flags interface.
+ */
+
+STATIC unsigned int
+xfs_merge_ioc_xflags(
+	unsigned int	flags,
+	unsigned int	start)
+{
+	unsigned int	xflags = start;
+
+	if (flags & FS_IMMUTABLE_FL)
+		xflags |= XFS_XFLAG_IMMUTABLE;
+	else
+		xflags &= ~XFS_XFLAG_IMMUTABLE;
+	if (flags & FS_APPEND_FL)
+		xflags |= XFS_XFLAG_APPEND;
+	else
+		xflags &= ~XFS_XFLAG_APPEND;
+	if (flags & FS_SYNC_FL)
+		xflags |= XFS_XFLAG_SYNC;
+	else
+		xflags &= ~XFS_XFLAG_SYNC;
+	if (flags & FS_NOATIME_FL)
+		xflags |= XFS_XFLAG_NOATIME;
+	else
+		xflags &= ~XFS_XFLAG_NOATIME;
+	if (flags & FS_NODUMP_FL)
+		xflags |= XFS_XFLAG_NODUMP;
+	else
+		xflags &= ~XFS_XFLAG_NODUMP;
+
+	return xflags;
+}
+
+STATIC unsigned int
+xfs_di2lxflags(
+	__uint16_t	di_flags)
+{
+	unsigned int	flags = 0;
+
+	if (di_flags & XFS_DIFLAG_IMMUTABLE)
+		flags |= FS_IMMUTABLE_FL;
+	if (di_flags & XFS_DIFLAG_APPEND)
+		flags |= FS_APPEND_FL;
+	if (di_flags & XFS_DIFLAG_SYNC)
+		flags |= FS_SYNC_FL;
+	if (di_flags & XFS_DIFLAG_NOATIME)
+		flags |= FS_NOATIME_FL;
+	if (di_flags & XFS_DIFLAG_NODUMP)
+		flags |= FS_NODUMP_FL;
+	return flags;
+}
+
+STATIC int
+xfs_ioc_fsgetxattr(
+	xfs_inode_t		*ip,
+	int			attr,
+	void			__user *arg)
+{
+	struct fsxattr		fa;
+
+	memset(&fa, 0, sizeof(struct fsxattr));
+
+	xfs_ilock(ip, XFS_ILOCK_SHARED);
+	fa.fsx_xflags = xfs_ip2xflags(ip);
+	fa.fsx_extsize = ip->i_d.di_extsize << ip->i_mount->m_sb.sb_blocklog;
+	fa.fsx_projid = xfs_get_projid(ip);
+
+	if (attr) {
+		if (ip->i_afp) {
+			if (ip->i_afp->if_flags & XFS_IFEXTENTS)
+				fa.fsx_nextents = ip->i_afp->if_bytes /
+							sizeof(xfs_bmbt_rec_t);
+			else
+				fa.fsx_nextents = ip->i_d.di_anextents;
+		} else
+			fa.fsx_nextents = 0;
+	} else {
+		if (ip->i_df.if_flags & XFS_IFEXTENTS)
+			fa.fsx_nextents = ip->i_df.if_bytes /
+						sizeof(xfs_bmbt_rec_t);
+		else
+			fa.fsx_nextents = ip->i_d.di_nextents;
+	}
+	xfs_iunlock(ip, XFS_ILOCK_SHARED);
+
+	if (copy_to_user(arg, &fa, sizeof(fa)))
+		return -EFAULT;
+	return 0;
+}
+
+STATIC void
+xfs_set_diflags(
+	struct xfs_inode	*ip,
+	unsigned int		xflags)
+{
+	unsigned int		di_flags;
+
+	/* can't set PREALLOC this way, just preserve it */
+	di_flags = (ip->i_d.di_flags & XFS_DIFLAG_PREALLOC);
+	if (xflags & XFS_XFLAG_IMMUTABLE)
+		di_flags |= XFS_DIFLAG_IMMUTABLE;
+	if (xflags & XFS_XFLAG_APPEND)
+		di_flags |= XFS_DIFLAG_APPEND;
+	if (xflags & XFS_XFLAG_SYNC)
+		di_flags |= XFS_DIFLAG_SYNC;
+	if (xflags & XFS_XFLAG_NOATIME)
+		di_flags |= XFS_DIFLAG_NOATIME;
+	if (xflags & XFS_XFLAG_NODUMP)
+		di_flags |= XFS_DIFLAG_NODUMP;
+	if (xflags & XFS_XFLAG_PROJINHERIT)
+		di_flags |= XFS_DIFLAG_PROJINHERIT;
+	if (xflags & XFS_XFLAG_NODEFRAG)
+		di_flags |= XFS_DIFLAG_NODEFRAG;
+	if (xflags & XFS_XFLAG_FILESTREAM)
+		di_flags |= XFS_DIFLAG_FILESTREAM;
+	if (S_ISDIR(ip->i_d.di_mode)) {
+		if (xflags & XFS_XFLAG_RTINHERIT)
+			di_flags |= XFS_DIFLAG_RTINHERIT;
+		if (xflags & XFS_XFLAG_NOSYMLINKS)
+			di_flags |= XFS_DIFLAG_NOSYMLINKS;
+		if (xflags & XFS_XFLAG_EXTSZINHERIT)
+			di_flags |= XFS_DIFLAG_EXTSZINHERIT;
+	} else if (S_ISREG(ip->i_d.di_mode)) {
+		if (xflags & XFS_XFLAG_REALTIME)
+			di_flags |= XFS_DIFLAG_REALTIME;
+		if (xflags & XFS_XFLAG_EXTSIZE)
+			di_flags |= XFS_DIFLAG_EXTSIZE;
+	}
+
+	ip->i_d.di_flags = di_flags;
+}
+
+STATIC void
+xfs_diflags_to_linux(
+	struct xfs_inode	*ip)
+{
+	struct inode		*inode = VFS_I(ip);
+	unsigned int		xflags = xfs_ip2xflags(ip);
+
+	if (xflags & XFS_XFLAG_IMMUTABLE)
+		inode->i_flags |= S_IMMUTABLE;
+	else
+		inode->i_flags &= ~S_IMMUTABLE;
+	if (xflags & XFS_XFLAG_APPEND)
+		inode->i_flags |= S_APPEND;
+	else
+		inode->i_flags &= ~S_APPEND;
+	if (xflags & XFS_XFLAG_SYNC)
+		inode->i_flags |= S_SYNC;
+	else
+		inode->i_flags &= ~S_SYNC;
+	if (xflags & XFS_XFLAG_NOATIME)
+		inode->i_flags |= S_NOATIME;
+	else
+		inode->i_flags &= ~S_NOATIME;
+}
+
+#define FSX_PROJID	1
+#define FSX_EXTSIZE	2
+#define FSX_XFLAGS	4
+#define FSX_NONBLOCK	8
+
+STATIC int
+xfs_ioctl_setattr(
+	xfs_inode_t		*ip,
+	struct fsxattr		*fa,
+	int			mask)
+{
+	struct xfs_mount	*mp = ip->i_mount;
+	struct xfs_trans	*tp;
+	unsigned int		lock_flags = 0;
+	struct xfs_dquot	*udqp = NULL;
+	struct xfs_dquot	*gdqp = NULL;
+	struct xfs_dquot	*olddquot = NULL;
+	int			code;
+
+	trace_xfs_ioctl_setattr(ip);
+
+	if (mp->m_flags & XFS_MOUNT_RDONLY)
+		return XFS_ERROR(EROFS);
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return XFS_ERROR(EIO);
+
+	/*
+	 * Disallow 32bit project ids when projid32bit feature is not enabled.
+	 */
+	if ((mask & FSX_PROJID) && (fa->fsx_projid > (__uint16_t)-1) &&
+			!xfs_sb_version_hasprojid32bit(&ip->i_mount->m_sb))
+		return XFS_ERROR(EINVAL);
+
+	/*
+	 * If disk quotas is on, we make sure that the dquots do exist on disk,
+	 * before we start any other transactions. Trying to do this later
+	 * is messy. We don't care to take a readlock to look at the ids
+	 * in inode here, because we can't hold it across the trans_reserve.
+	 * If the IDs do change before we take the ilock, we're covered
+	 * because the i_*dquot fields will get updated anyway.
+	 */
+	if (XFS_IS_QUOTA_ON(mp) && (mask & FSX_PROJID)) {
+		code = xfs_qm_vop_dqalloc(ip, ip->i_d.di_uid,
+					 ip->i_d.di_gid, fa->fsx_projid,
+					 XFS_QMOPT_PQUOTA, &udqp, &gdqp);
+		if (code)
+			return code;
+	}
+
+	/*
+	 * For the other attributes, we acquire the inode lock and
+	 * first do an error checking pass.
+	 */
+	tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_NOT_SIZE);
+	code = xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0);
+	if (code)
+		goto error_return;
+
+	lock_flags = XFS_ILOCK_EXCL;
+	xfs_ilock(ip, lock_flags);
+
+	/*
+	 * CAP_FOWNER overrides the following restrictions:
+	 *
+	 * The user ID of the calling process must be equal
+	 * to the file owner ID, except in cases where the
+	 * CAP_FSETID capability is applicable.
+	 */
+	if (current_fsuid() != ip->i_d.di_uid && !capable(CAP_FOWNER)) {
+		code = XFS_ERROR(EPERM);
+		goto error_return;
+	}
+
+	/*
+	 * Do a quota reservation only if projid is actually going to change.
+	 */
+	if (mask & FSX_PROJID) {
+		if (XFS_IS_QUOTA_RUNNING(mp) &&
+		    XFS_IS_PQUOTA_ON(mp) &&
+		    xfs_get_projid(ip) != fa->fsx_projid) {
+			ASSERT(tp);
+			code = xfs_qm_vop_chown_reserve(tp, ip, udqp, gdqp,
+						capable(CAP_FOWNER) ?
+						XFS_QMOPT_FORCE_RES : 0);
+			if (code)	/* out of quota */
+				goto error_return;
+		}
+	}
+
+	if (mask & FSX_EXTSIZE) {
+		/*
+		 * Can't change extent size if any extents are allocated.
+		 */
+		if (ip->i_d.di_nextents &&
+		    ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) !=
+		     fa->fsx_extsize)) {
+			code = XFS_ERROR(EINVAL);	/* EFBIG? */
+			goto error_return;
+		}
+
+		/*
+		 * Extent size must be a multiple of the appropriate block
+		 * size, if set at all. It must also be smaller than the
+		 * maximum extent size supported by the filesystem.
+		 *
+		 * Also, for non-realtime files, limit the extent size hint to
+		 * half the size of the AGs in the filesystem so alignment
+		 * doesn't result in extents larger than an AG.
+		 */
+		if (fa->fsx_extsize != 0) {
+			xfs_extlen_t    size;
+			xfs_fsblock_t   extsize_fsb;
+
+			extsize_fsb = XFS_B_TO_FSB(mp, fa->fsx_extsize);
+			if (extsize_fsb > MAXEXTLEN) {
+				code = XFS_ERROR(EINVAL);
+				goto error_return;
+			}
+
+			if (XFS_IS_REALTIME_INODE(ip) ||
+			    ((mask & FSX_XFLAGS) &&
+			    (fa->fsx_xflags & XFS_XFLAG_REALTIME))) {
+				size = mp->m_sb.sb_rextsize <<
+				       mp->m_sb.sb_blocklog;
+			} else {
+				size = mp->m_sb.sb_blocksize;
+				if (extsize_fsb > mp->m_sb.sb_agblocks / 2) {
+					code = XFS_ERROR(EINVAL);
+					goto error_return;
+				}
+			}
+
+			if (fa->fsx_extsize % size) {
+				code = XFS_ERROR(EINVAL);
+				goto error_return;
+			}
+		}
+	}
+
+
+	if (mask & FSX_XFLAGS) {
+		/*
+		 * Can't change realtime flag if any extents are allocated.
+		 */
+		if ((ip->i_d.di_nextents || ip->i_delayed_blks) &&
+		    (XFS_IS_REALTIME_INODE(ip)) !=
+		    (fa->fsx_xflags & XFS_XFLAG_REALTIME)) {
+			code = XFS_ERROR(EINVAL);	/* EFBIG? */
+			goto error_return;
+		}
+
+		/*
+		 * If realtime flag is set then must have realtime data.
+		 */
+		if ((fa->fsx_xflags & XFS_XFLAG_REALTIME)) {
+			if ((mp->m_sb.sb_rblocks == 0) ||
+			    (mp->m_sb.sb_rextsize == 0) ||
+			    (ip->i_d.di_extsize % mp->m_sb.sb_rextsize)) {
+				code = XFS_ERROR(EINVAL);
+				goto error_return;
+			}
+		}
+
+		/*
+		 * Can't modify an immutable/append-only file unless
+		 * we have appropriate permission.
+		 */
+		if ((ip->i_d.di_flags &
+				(XFS_DIFLAG_IMMUTABLE|XFS_DIFLAG_APPEND) ||
+		     (fa->fsx_xflags &
+				(XFS_XFLAG_IMMUTABLE | XFS_XFLAG_APPEND))) &&
+		    !capable(CAP_LINUX_IMMUTABLE)) {
+			code = XFS_ERROR(EPERM);
+			goto error_return;
+		}
+	}
+
+	xfs_trans_ijoin(tp, ip);
+
+	/*
+	 * Change file ownership.  Must be the owner or privileged.
+	 */
+	if (mask & FSX_PROJID) {
+		/*
+		 * CAP_FSETID overrides the following restrictions:
+		 *
+		 * The set-user-ID and set-group-ID bits of a file will be
+		 * cleared upon successful return from chown()
+		 */
+		if ((ip->i_d.di_mode & (S_ISUID|S_ISGID)) &&
+		    !capable(CAP_FSETID))
+			ip->i_d.di_mode &= ~(S_ISUID|S_ISGID);
+
+		/*
+		 * Change the ownerships and register quota modifications
+		 * in the transaction.
+		 */
+		if (xfs_get_projid(ip) != fa->fsx_projid) {
+			if (XFS_IS_QUOTA_RUNNING(mp) && XFS_IS_PQUOTA_ON(mp)) {
+				olddquot = xfs_qm_vop_chown(tp, ip,
+							&ip->i_gdquot, gdqp);
+			}
+			xfs_set_projid(ip, fa->fsx_projid);
+
+			/*
+			 * We may have to rev the inode as well as
+			 * the superblock version number since projids didn't
+			 * exist before DINODE_VERSION_2 and SB_VERSION_NLINK.
+			 */
+			if (ip->i_d.di_version == 1)
+				xfs_bump_ino_vers2(tp, ip);
+		}
+
+	}
+
+	if (mask & FSX_EXTSIZE)
+		ip->i_d.di_extsize = fa->fsx_extsize >> mp->m_sb.sb_blocklog;
+	if (mask & FSX_XFLAGS) {
+		xfs_set_diflags(ip, fa->fsx_xflags);
+		xfs_diflags_to_linux(ip);
+	}
+
+	xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG);
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+
+	XFS_STATS_INC(xs_ig_attrchg);
+
+	/*
+	 * If this is a synchronous mount, make sure that the
+	 * transaction goes to disk before returning to the user.
+	 * This is slightly sub-optimal in that truncates require
+	 * two sync transactions instead of one for wsync filesystems.
+	 * One for the truncate and one for the timestamps since we
+	 * don't want to change the timestamps unless we're sure the
+	 * truncate worked.  Truncates are less than 1% of the laddis
+	 * mix so this probably isn't worth the trouble to optimize.
+	 */
+	if (mp->m_flags & XFS_MOUNT_WSYNC)
+		xfs_trans_set_sync(tp);
+	code = xfs_trans_commit(tp, 0);
+	xfs_iunlock(ip, lock_flags);
+
+	/*
+	 * Release any dquot(s) the inode had kept before chown.
+	 */
+	xfs_qm_dqrele(olddquot);
+	xfs_qm_dqrele(udqp);
+	xfs_qm_dqrele(gdqp);
+
+	return code;
+
+ error_return:
+	xfs_qm_dqrele(udqp);
+	xfs_qm_dqrele(gdqp);
+	xfs_trans_cancel(tp, 0);
+	if (lock_flags)
+		xfs_iunlock(ip, lock_flags);
+	return code;
+}
+
+STATIC int
+xfs_ioc_fssetxattr(
+	xfs_inode_t		*ip,
+	struct file		*filp,
+	void			__user *arg)
+{
+	struct fsxattr		fa;
+	unsigned int		mask;
+
+	if (copy_from_user(&fa, arg, sizeof(fa)))
+		return -EFAULT;
+
+	mask = FSX_XFLAGS | FSX_EXTSIZE | FSX_PROJID;
+	if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
+		mask |= FSX_NONBLOCK;
+
+	return -xfs_ioctl_setattr(ip, &fa, mask);
+}
+
+STATIC int
+xfs_ioc_getxflags(
+	xfs_inode_t		*ip,
+	void			__user *arg)
+{
+	unsigned int		flags;
+
+	flags = xfs_di2lxflags(ip->i_d.di_flags);
+	if (copy_to_user(arg, &flags, sizeof(flags)))
+		return -EFAULT;
+	return 0;
+}
+
+STATIC int
+xfs_ioc_setxflags(
+	xfs_inode_t		*ip,
+	struct file		*filp,
+	void			__user *arg)
+{
+	struct fsxattr		fa;
+	unsigned int		flags;
+	unsigned int		mask;
+
+	if (copy_from_user(&flags, arg, sizeof(flags)))
+		return -EFAULT;
+
+	if (flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | \
+		      FS_NOATIME_FL | FS_NODUMP_FL | \
+		      FS_SYNC_FL))
+		return -EOPNOTSUPP;
+
+	mask = FSX_XFLAGS;
+	if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
+		mask |= FSX_NONBLOCK;
+	fa.fsx_xflags = xfs_merge_ioc_xflags(flags, xfs_ip2xflags(ip));
+
+	return -xfs_ioctl_setattr(ip, &fa, mask);
+}
+
+STATIC int
+xfs_getbmap_format(void **ap, struct getbmapx *bmv, int *full)
+{
+	struct getbmap __user	*base = *ap;
+
+	/* copy only getbmap portion (not getbmapx) */
+	if (copy_to_user(base, bmv, sizeof(struct getbmap)))
+		return XFS_ERROR(EFAULT);
+
+	*ap += sizeof(struct getbmap);
+	return 0;
+}
+
+STATIC int
+xfs_ioc_getbmap(
+	struct xfs_inode	*ip,
+	int			ioflags,
+	unsigned int		cmd,
+	void			__user *arg)
+{
+	struct getbmapx		bmx;
+	int			error;
+
+	if (copy_from_user(&bmx, arg, sizeof(struct getbmapx)))
+		return -XFS_ERROR(EFAULT);
+
+	if (bmx.bmv_count < 2)
+		return -XFS_ERROR(EINVAL);
+
+	bmx.bmv_iflags = (cmd == XFS_IOC_GETBMAPA ? BMV_IF_ATTRFORK : 0);
+	if (ioflags & IO_INVIS)
+		bmx.bmv_iflags |= BM